General Motors is scaling up production of a new EV battery that most of the industry, in the U.S. and in China, doesn’t think is ready for commercial use. The Information takes a detailed look at the bet: prismatic cells built on a lithium manganese-rich chemistry, usually shortened to LMR. GM plans to launch it in 2028.
This matters because GM isn’t treating LMR as a side experiment. It’s the main piece of the company’s plan to make EVs profitable.
What GM Is Actually Building
LMR cells use more manganese and far less nickel and cobalt than the high-nickel batteries in most American EVs today. The pitch is simple. You get energy density close to premium nickel cells at a cost closer to cheap lithium iron phosphate (LFP).
If GM pulls it off, the numbers get interesting:
- Lower costs: Reports put the savings at several thousand dollars per pack and nearly 10% off the cost of GM’s EVs.
- Longer range: GM has said LMR packs will store much more energy than the best LFP packs it could use in trucks and large SUVs.
- Less supply risk: Manganese is cheap and plentiful, so GM leans less on nickel and cobalt supply chains.
- Faster timeline: The plan reportedly brings lower-cost batteries to market a year earlier than GM first expected.
Why Rivals Are Skeptical
LMR isn’t new. Researchers have studied it for years, and it has a known weak spot. The cells tend to lose voltage and capacity as they charge and discharge over time. That’s a serious problem for a car battery that needs to last a decade or more.
Most competitors have picked a different road. Tesla, Ford and Rivian have all moved toward LFP, the chemistry Chinese battery makers perfected and now build at huge scale. GM, meanwhile, is signaling that LFP may never play a big role in its lineup.
What stands out here is how exposed that leaves GM. If LMR delivers, GM owns an edge that its competitors skipped. If it doesn’t, GM will have spent billions on factories and tooling that could turn into stranded assets while everyone else keeps scaling proven lithium-ion platforms.
The Timing Problem
GM is making this bet while EV demand is shaky. Federal incentives have shrunk, automakers have written down EV investments, and buyers are still split on price and charging.
A cheaper battery is exactly what could bring EV prices close to gas cars. A cheaper battery that shows up in 2028 into a weak market, though, is a harder sell to investors who want returns now.
What This Tells Us About Deep-Tech Bets
This story reaches well past cars. Anyone working on frontier technology, including AI, will recognize the pattern:
- Contrarian technical bets pay off big or fail badly. There’s rarely a middle outcome when you build factories around unproven science.
- Scale beats elegance until it doesn’t. LFP won by being boring and cheap at volume. GM is betting that better chemistry can still beat volume.
- Energy is the constraint everywhere. Battery chemistry now shapes grid storage and data center backup as much as EVs. Progress on cheap, dense cells matters to AI infrastructure too.
- Materials science is becoming a software problem. Battery makers increasingly use AI-driven simulation to test chemistries faster. Fixing LMR’s degradation is just the kind of problem those tools are meant to speed up.
Practical Takeaways
- For operators and investors: Watch GM’s pilot production data between now and 2028. Cycle life and voltage stability numbers will tell you more than any press release.
- For suppliers: Hedge your bets. Having deep know-how in both LFP and manganese-rich chemistries lowers your risk while the market picks a winner.
- For tech leaders in general: GM shows what real commitment looks like. It picked one technical path and cut the alternatives. That focus can create an edge, but only if you’re watching the data closely enough to change course if the science doesn’t hold up.
What Comes Next
The real test comes when LMR cells hit actual vehicles and actual winters. GM has set itself a clear, public deadline, and the industry will be watching closely. If it works, the rest of Detroit may have to rethink its LFP plans. For the full reporting on GM’s battery plans and the doubts around them, see the original piece in The Information.